diff --git a/classes/recompletion_form.php b/classes/recompletion_form.php
index c143fa5..f406089 100644
--- a/classes/recompletion_form.php
+++ b/classes/recompletion_form.php
@@ -64,7 +64,7 @@ public function definition() {
             self::RECOMPLETION_TYPE_ONDEMAND => get_string('recompletiontype:ondemand', 'local_recompletion'),
             self::RECOMPLETION_TYPE_SCHEDULE => get_string('recompletiontype:schedule', 'local_recompletion'),
         ]);
-        $mform->setDefault('recompletiontype', RECOMPLETION_TYPE_DISABLED);
+        $mform->setDefault('recompletiontype', self::RECOMPLETION_TYPE_DISABLED);
         $mform->addHelpButton('recompletiontype', 'recompletiontype', 'local_recompletion');
 
         $mform->addElement('checkbox', 'recompletionemailenable', get_string('recompletionemailenable', 'local_recompletion'));